trinquart



March I3, 1928.

L. G. TRINQUART HIGH PRESSURE LUBRICATING COMPRESSOR 3 Sheets-Sheet l Original Filed May '7, 1924 ill.. fl// Louis Gaston 'rrinquart I VENTOR March 13, 1928'.-

L. G. TRINQUART HIGH PRESSURE LUBRICATING COMPRESSOR Original Filed May '7. 1924 5 Sheets-Sheet 2 Louis Gaston Trnquazt INVENTOR man u his Attorne y.

March 13, 1928.

L. G. TRINQUART HIGH PRESSURE LUBRIGATING COMPRESSOR Original Filed May '7. 1924 3 Sheets-Sheet 5 Louis Gaston Trinquar'c lmENToR; wm@

his AttQrney.

Patented Mar. 13, 1928.

LOUIS GASTON TRINQUART, OF PARIS, FRANCE, ASSIGNOR TO THE BASSICK MANU- FACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATON GIF DELYVARE.

HIGH-PRESSURE LUBRICATNG COMPRESSOR.

Application filed May 7, 1924, Serial No. 711,540, and in France January 18, 1924. Renewed January 'Y The lubricating compressors heretofore used where pressure is employed require the attention of both hands, one to'hold the body of the compressor and the other to operate the piston and force it in far enough to discharge the lubricant from the compresson .The necessary use of both hands, however, forma serious impediment when lubricating the parts of a vehicle which are 0 only accessible with difiiculty.

It is'with a View to eliminating this drawback that the applicant has'devised the high pressure lubricating compressor which constitutes this inventionand wherein the cylindrical part, which. inthe compressors at present in vogue. plays the part of' the compressor body or the pump cylinder, constitutes merely areservoir forthe lubricant and is conveniently associated with a small pump comprising a tube or' cylinder, a piston vor plunger and a valve. The parts are arranged in such a manner that'thetube or cylinder and the plunger are maintained at a distance apart by a. spring and the extremity ofthe tube or cylinder is kept inea position directly over thelubricant or dipping into-it.

The compression and expulsion Vof the lubricantl from the compressor is affected by a succession of reciprocating displacements of the tube relatively to the piston plunger whilst the compressor-is held in one hand either`by pushing on the compressor' body or the extremity of thepiston plunger according to circumstances.

- A second characteristic feature of the invent-ion consists in the combination with the lj'nbricatingA device of a spherical junction or union-member loca-tedv at the extremity of th'e"tube. and makingr it possible to obtain a joint between the compressor and lubricator that remains tight during the lubricating operation evenv though the compressor be held in an inclined position.

`The following description with the aid of the accompanying drawings shows by way of example several ways. of carrying out the invention.

' All the said drawings are in sectional elevation. A Y y Figs. 1 and 2 represent one constructional A form of the invention,

Figs. 3 and et represent an alternative form.

Fig-.5 gives a view of a detail and shows the spherical junction of the compressor when applied directly against the lubricator.

Figs. 6 and 7 show in vlongitudinal section two alternative forms of the invention.

vIn the constructional form shown in Figs. l and 2, the cylindrical part a,`which7 in the compressors at present in use operates as the compressor body and which will7 for simplicity"s sake be referred to under this designation7 constitutes simply a. lubricant reservoir and is closed by a base or end cap a. which is preferably not perfectly tight but adapted to allow of the ready access for the air to space The forward extremity z2 of the comprcssor body may be fitted so as to slide upon'a tube c c which constitutes the pump cylinder, and a gland d may be provided to secure tightness.v The tube c terminates in a nozzle e. preferably of spherical shape and adapted to makey a tight tit with the circular opening of a lubricator inlet such as f, Fig. 5. even through the pump be held somewhat inclined relatively to the said inlet.

The piston plunger (j which is attached t0 the bottom a of the compressor body (L is adapted to pass within the ycylindrical part c. Between the bottom a and the pump cylinder o is fitted a spring 7L which acts to keep the said piston plunger g and the cylinder apart,'tfliat is to say, to maintain the compressor in the ppsition shown in Fig. 2.

Between the parts c and c of the pump cylinderis inserted a valve, such as a ball valve 7c subject to the pressure of a spring Z.

The lubricant is stored in the chamber b' and a partition wall i forms a tight joint between the two chambers 7J. This partition may be arranged so as to slide longitudinally along a fixed tube 7' which is closed atits rear end by the bottom a of the compresser whilst its forward end is provided with passages j.

The vmanner of operating the improved lubricating compressor is as follows The compressor body a is held by the hand and the nozzle e is applied to the lubricator as shown in Fig. 5. By a reciprocatory movement, the compressor body is then made to move to and from the lub'ricator, in other words, it is displaced Afrom the position shown in Fig. 2 to that in Fig. l and conl* position shown in Fig. 1.

versely. -Each displacement is accompanied by a corresponding pumping stroke of the piston g inside the cylinder c', and, in consequence, by a very high pressure on the lubrivalve 7c and the nozzle i For example, supposing that a start be made from the position shown in Fig. 2

When the lubricant fills-the chamber b andl it will be seen that theythe cylinder c plunger g as it passes into the'said cylinder c will exert pressure on the lubricant thereon to a high degree and thus 'drive it out` by the valve 7c and the nozzle e, the parts of the compressor passing meanwhile tothe .If new, at this moment, the pressure be relaxed, though the nozzle e is still'kept in contact With the lubricator f, the yspring h, being under tension, Will push back the compresser body and restore it to the position shown in Fig. 2. During this rearward movement the extremity of the plunger g has produced a vacuum in the cylinder c as a. result of the closing ofthe bottom ot' vthe cylinder c by the ball valve 7c and inl these circumstances whenever' the piston uncovers the upper extremity of the cylinder o', the lubricant contained in the chamber' b which is subjected vto atmospheric pressure exerted onthe partitionz' will flow in the direction of the arrows and recharge the cyllinderc referred to with the result that the compressor is restored to its initial condi-V It must not beforgotten'that at each stroke of the pump the level of the lubricantis 10W- ered and that the partition z' is maintained in cont-act with the lubricant under 'the influence of atmospheric pressure and capillary orces. The .flange z" of the partition may be arranged at a higher level'as shown inFigs. 3 and-1ik so that the 'said' partition will be, to a certain extent, floated upon the n actly.

lubricant and vWill follow its In order to avoid any compression of the lubricant Within the Ytube a suitable hole 7? may be provided.

In the constructional `form illustrated inl Figs. Band 4 the principle of operationis the 1saine but itis the extremity g of the piston rod'or plunger g which is pushed by the' hand to obtain the reciprocating movement, thel spherical nozzle e remaining in contact With the lubricator and the cylindri- 'call tube c being fixed to body a ofthe compresser.

' Itfmay be remarked that the extremity gf f ofthe piston plunger mayact as a gland Y vand be of lantern construction to ensure Vaccurate guiding during yits stroke, as showny ink Fig. 4, While still permitting the lubricant contained in thechamber b to ind its Way-into the-.pump cylinder c.

nof the pump c. Y A

. Further it is easy to imagine the cylinder interior o-'the piston, see F ig. 7;

`VIt is self-evident that modilications may be introduced into the arrangement of the constituent partsof the compressor just described Without departing from the princicant and the latter is expelled through the ple ofthe invention, Vmore particularly in cases Where oil is employed instead of more operate when the nozzle c isnot pressed against the lubricator buty isvsuspended ,over

the latter by some suitable device, orper-V haps attached by a iexiblev tube to the body '1 tobe situated not as shown and described in the foregoing examples, butV to be transerred to the rear end a of thelcompressor" body, the-piston lplunger vg being-then of tubular construction to allowvthellubricant to be compressed and expelled through the Whatever the construction form may be account has to be taken ofthe fact that, owing to the small diameterof .the pump c' substantially high pressure lmay be obtained and that, on the other hand, lthe compressor body lar, constituting, as it does, merely `a reservoir for the greasev or lubricant,may have: very thin Walls and may for example, be

constructed-of tinlplate. Y

In Fig. 5 the spherical nozzle end e is siek lubricator and it will be seen that the laty ter as Well as the spring pressed valve f `.-areleountersunk in such lmanner .that they form together a recess or depression in which the nozzle e can steady itself, this depressionV is a'help vin centering thecap when it is dif- I claim:

nation of a reservoir containing lubricant,

.ri'iio 1. In a lubricating apparatus, the combii-l means for-'separating successive fractionsof said 'lubricant and distributing the same,

.1F51 of lubricant land having' ai flange rigid VWith and a movable partition engaging the body andY substantially parallelto said4 partition and embedded in thebodyof lubricants 2. In a-lubricating apparatus, the combi-l nation of a lubricant reservoir, a pump comthe .reservoir andV communicating therewith,

c a 'central tube arranged in the axisof the ylubricant reservoir and rigid therewithfa movable Apartition embracing said tube and adapted to engage lubricantginsaid reservoir, and a eoilspring for retra'cting'said j piston, said spring. contained 'in' said'central tube. s n 3. In a lubricating apparatus, the combif. shown as pressed against the mouth f 'of ,the'f'l prisinga piston and cylinder mounted in`fnation of a lubricant reservoir, a high pressure pump comprising a piston and cylinder mounted in the reservoir and communicating therewith, a central tube arranged in the Y axis of the lubricant reservoir and supported thereby, a movable partition embracing said tube and adapted to engage lubricant contained in said reservoir, said partition LOUIS GASTON TRINQUART. 

